How to Print a Book in the UK: From Formatting to Print

You've finished your manuscript. That's the hard part, or so you thought, until you sit down to actually turn it into a physical book and realise that almost every guide you find online was written for someone in Ohio, not Oxford.

Imperial trim sizes. US ISBNs. American printers with American prices. None of it maps cleanly onto what you actually need to do here.

Follow that advice as written, and you'll end up with a book that's the wrong shape for a UK shelf, a cover with white slivers where the bleed should be, an ISBN that quietly lists your publisher instead of you, and a budget with no room for VAT or legal deposit. Get one setting wrong at the print stage, and you're often stuck paying for a run you can't take back.

This guide fixes that. It's a single, start-to-finish UK walkthrough: choosing your trim size in millimetres, formatting a print-ready PDF, deciding whether to buy your own ISBN, working out what everything actually costs in pounds, and picking the right printing route for your book. By the end you'll know exactly which numbers to use and which questions to ask before you spend a penny.

A quick note before you carry on: this guide assumes your manuscript itself is already finished. If you're still hunting for what to write about, where to find book ideas is the better starting point, and it's worth reading before any of this becomes relevant.

If you used a professional to help shape the manuscript itself, whether that was structural input from a ghostwriting service or your own solo drafting, everything from here on applies the same way. If you're weighing up whether that kind of help would suit a future project, what a ghostwriter actually does day to day is worth a read on its own, separate from the print process itself.

UK Trim Sizes and Margins: The Settings That Stop Your Book Looking Amateur

Before you touch a single margin, pick your trim size. Every other setting, from your gutter to your final page count, hangs off that one decision.

Most free formatting templates you'll find online are built for US "trade" sizes in inches. Use one of those without adjusting it, and your book comes out a slightly wrong shape, with the text sitting too close to the spine and margins that don't match what a UK printer expects.

Why UK trim sizes differ from US advice

US guides default to imperial sizes like 5 x 8 in, 5.5 x 8.5 in, or 6 x 9 in, built around American letter-size assumptions. UK authors need to think in millimetres, and to know which sizes UK printers and readers actually expect.

Where a US guide says "5 x 8," a UK author should read that as 203 x 127 mm. Where a US guide tells you to buy an ISBN. That substitution runs through the whole process. Every time you hit an American convention in a downloaded template or a YouTube tutorial, swap in the UK equivalent before you proceed.

Common UK trim sizes and when to use each

Choose your trim size before you format a single page. Fiction has a clear UK standard, non-fiction has its own, and a few specialist formats cover everything else.

Expert tip: the 19.1 mm inside and 12.7 mm outside/top/bottom figures above are confirmed for the 203 x 127 mm fiction standard. For the other sizes, minimum margins shift depending on your page count, so pull the current template from whichever platform you're printing through rather than guessing at a fixed number.

If your book is a novel or memoir, 203 x 127 mm is the safe, expected default. Readers recognise it, shelves accommodate it, and most UK print services have it pre-built into their tools. If you're writing something longer or more reference-heavy, non-fiction readers are used to the slightly larger 216 x 140 mm page, which gives you more room per line without the book feeling bulky. A5 at 210 x 148 mm works well for poetry collections, journals and workbooks where a smaller, squarer page suits the content. If you're still deciding what shape your project even is, it's worth a look at how different types of books get packaged, how expectations shift across different literary genres, and, for fantasy writers specifically, how high fantasy differs from low fantasy, since genre and reader expectations can influence everything from presentation to final format. 

Margin and bleed settings you can copy straight into Word

Set your inside, or gutter, margin wider than the bare minimum. For a 203 x 127 mm fiction paperback, use 19.1 mm on the inside and 12.7 mm on the outside, top and bottom. That extra inside margin matters more than it looks like it should, because on a thicker book, text set too close to the spine effectively disappears into the binding when the book is opened flat.

Add 3.175 mm of bleed; that's 0.125 in if you're working in a tool that still shows inches, on every edge where an image, colour block, or background touches the page edge. Skip this and your printed cover will show thin white slivers around the trimmed edge, because the printer's blade doesn't cut with pixel precision.

To set this up in Word, open the page setup dialogue and choose a custom page size of 203 x 127 mm (or whichever size you've chosen from the table). Set your margins to 19.1 mm inside and 12.7 mm outside, top and bottom, and leave the gutter setting at 0, since your inside margin has already accounted for the spine space. If you're working, bleed is applied automatically once you select your trim size. You'll set bleed manually in the Bleed and Slug fields when you create your new document.

Fonts and line spacing for a professional interior

Use 11pt Garamond or 10.5pt Georgia with line spacing somewhere between 1.3 and 1.5. Both are serif fonts, both are widely available across formatting tools, and both are set at a size and spacing that closely match what traditionally published books use, which is exactly the point. Readers don't consciously notice good typesetting; they only notice bad typesetting.

Avoid anything decorative, avoid single spacing that packs the page too densely, and avoid dropping below about 10pt just to save on page count. A page set in a novelty font with tight spacing reads as amateur before a reader has taken in a single word of your actual writing.

How to Format Your Manuscript for Print: A Developmental UK Guide

Formatting is the step most first-time authors dread, but it's mechanical once you know the order to do things in. Work through the following steps in sequence, and you'll end up with a genuine print-ready PDF. If you'd rather skip the manual side entirely, Northern Star Press's book formatting services cover this whole stage for you, from page setup through to the final export.

Step 1: Page setup, trim size, margins and gutter

Open a new document, or a working copy of your manuscript, and set the page size to whichever trim size you settled on above. For the 203 x 127 mm fiction standard, that means 19.1 mm inside and 12.7 mm outside, top and bottom.

If you're working in Microsoft Word, downloadable templates pre-set to each common trim size remove most of the manual setup for you. It's a familiar, free starting point, and for a straightforward novel it's genuinely enough on its own. Applying these settings to an existing manuscript without breaking your layout usually means adjusting the page size first, then checking your paragraph styles still flow correctly afterwards rather than the other way round.

Step 2: Adding bleed for full-bleed images and covers

Bleed only matters where an image, colour, or background touches the page edge, most commonly on your cover rather than inside the book, unless you're using full-page chapter art or photography. Set 3.175 mm of bleed in Word through the page setup panel, or manually set Bleed and Slug settings when creating a new document.

Step 3: Fonts, line spacing and readability

Apply your chosen font, 11pt Garamond or 10.5pt Georgia, with 1.3 to 1.5 line spacing, using Word's built-in Styles feature rather than formatting each paragraph individually. That keeps the whole manuscript consistent and means a single style change updates the entire book. From there, set sensible justification and hyphenation so your text block reads cleanly without awkward rivers of white space or overly aggressive word-breaking.

Step 4: Page numbering and running heads

Add page numbers using section breaks so your title page doesn't carry a visible number, which is the single most common formatting mistake first-time authors make. If you want running heads, the usual convention is your name on the left-hand page and the book title on the right.

Step 5: Front and back matter, the correct order

Front matter should run in this order: title page, copyright page, dedication, contents, foreword or preface if you have one, then your chapters, followed by any afterword and an about the author section at the back.

The copyright page deserves particular attention here. It's a legal requirement, not a formatting flourish, and it's covered properly further down in the pre-print checklist section, so don't skip past it assuming it's just boilerplate text to copy from somewhere else.

Step 6: Exporting a print-ready PDF

In Word, go to File, then Save As, then choose PDF, selecting "Standard" quality with fonts embedded rather than left to substitute. Before you send anything anywhere, check the exported PDF's page size actually matches your chosen trim size, and scroll through the whole document to confirm no pages have gone blank or shifted out of order during export, which happens more often than you'd expect with longer manuscripts.

Formatting tools compared: what actually suits your book

A basic word processor is free, or already sat on your laptop, familiar, and genuinely fine for a text-only novel with no complex layout needs. It becomes fiddly fast once you're dealing with images, footnotes, or anything beyond straightforward chapters.

Dedicated book formatting software, the cross-platform kind built specifically for authors, handles both your print and ebook files from the same source document, which makes it the best value option for most UK indie authors working on their first or second book.

Mac-only formatting software produces beautifully styled, traditionally set interiors with very little manual effort, but it's off the table entirely if you're on Windows, so check your operating system before you get attached to a particular workflow.

Professional desktop publishing software is the industry standard, giving you full control over every typographic detail down to individual letter spacing. That control comes with a steeper learning curve and an ongoing subscription cost, which makes more sense for complex non-fiction with charts, sidebars, and mixed layouts than for a straightforward novel. If your book needs particularly careful structuring, whether that's around pacing decisions like where your story's turning point lands or how chapters are broken up, getting the interior formatting right matters as much as getting the plotting right in the first place.

ISBNs for UK Authors: Free vs Owned, Costs and How to Register

The ISBN is the one step in this whole process that's genuinely, uniquely UK, and it trips up more first-time authors than almost anything else on this list.

Do you need an ISBN?

You need one if you want your book sold through retailers or catalogued in bibliographic databases. You don't need one for a private family book, a keepsake, or a one-off gift with no commercial distribution planned.

In plain terms, an ISBN is a unique product identifier, functionally similar to a barcode number, that lets retailers, libraries, and distributors order and catalogue the specific edition of your specific book correctly.

Free platform ISBNs vs owning your own ISBN

Buy your own ISBN if you want to be listed as the publisher of record and sell your book beyond a single platform. A free platform-provided ISBN locks that edition to that one retailer and lists the platform itself, not you, as publisher.

A free ISBN costs nothing but comes with that trade-off baked in permanently, since you can't transfer it once it's assigned. An owned ISBN, bought directly from the UK's official ISBN registration body, means you're the publisher of record, and you can use that same ISBN across multiple platforms and any UK printer you choose, giving you a consistent publishing identity from one edition to the next. Understanding what a publishing imprint actually is helps here too, since owning your ISBN is really the first practical step towards establishing one, even if it's just your own name behind a single title.

How much does a UK ISBN cost?

A single ISBN's cost depends on your requirements, making it far better value if you're planning more than one title, or if you want separate ISBNs for paperback, hardback and ebook editions of the same book, which technically require their own numbers. These figures are current as of the 2026 research behind this guide, and the registration body's own pricing page is the place to double-check before you buy, since ISBN prices do shift occasionally. 

How to register an ISBN in the UK

Registration follows a fairly straightforward sequence, and it takes longer to explain than it does to actually do once you've got your details ready.

Start by creating an account with the UK's official ISBN store. Purchase your single ISBN or your block of ten, depending on how many editions and formats you're planning. Log in to the online title registration tool once your purchase goes through. Assign your ISBN to your specific book, matching it to the correct edition if you're publishing paperback, hardback, and ebook versions separately. Enter the title metadata: title, author, format, publication date, and price. Double-check the metadata before submitting, since corrections after your title is live in bibliographic databases take longer to process than getting it right the first time.

One detail worth flagging early: each format of your book needs its own ISBN. A paperback, a hardback, and an ebook edition of the same title are technically three different products as far as retailers and libraries are concerned, so factor that into whether a single ISBN or a block of ten makes more sense for your specific plans.

Print-on-Demand vs Offset Printing: Which Should You Choose?

This is the biggest money decision in UK self-publishing, and it's worth getting an honest picture of the trade-offs rather than following whichever route a particular printer happens to be pushing.

How print-on-demand works

With print-on-demand, your files sit ready with a service, and when a reader orders a copy, one single book is printed and shipped. There's no print run to commit to, no warehouse space to find, and no upfront stock sitting in a spare room. Northern Star Press's print-on-demand service works exactly this way for authors who'd rather not gamble on guessing demand before they've made a single sale.

Use print-on-demand for your first book specifically to avoid upfront stock and warehousing costs. You only pay per copy when someone actually orders it, which removes the risk of unsold inventory sitting in boxes.

How offset printing works

A traditional offset printer sets up plates and prints hundreds or thousands of copies in a single run. You pay the setup and print costs upfront, and you store the resulting stock yourself, or pay someone else to.

Switch to offset only once you can confidently sell 500 or more copies. Offset carries high setup costs, but a much lower per-unit price once you're printing at that scale, which flips the maths in your favour if you already know you have the demand.

Side-by-side comparison

Note: per-copy pricing on offset runs varies widely depending on paper stock, binding, and order size, so treat the 500-copy threshold as a guide rather than a fixed rule, and always request current quotes before committing either way. Turnaround times shift with the season and with each individual printer's workload too.

When POD makes sense

Print-on-demand is the right call for your first book, for genuinely low expected sales, or when you're testing the market without the storage space or appetite for upfront financial risk.

When offset makes sense

Offset starts to make sense once you're confidently selling 500 or more copies, whether that's through an established audience, a speaking business, a course tie-in, or a run of events and book signings where lower per-unit cost outweighs the upfront risk and long lead time.

Your decision path: choose your route

If you'd rather work through this as a simple sequence of questions instead of reading prose, here's the same logic laid out as a decision path.

First, on print route: are you selling fewer than 500 copies, or genuinely unsure? Go print-on-demand. Confidently selling 500 or more? Go offset.

Second, on your ISBN: do you want to sell beyond a single platform and be listed as publisher yourself? Buy your own ISBN. Happy staying within one platform's ecosystem? Use their free ISBN instead.

Third, on formatting: comfortable working in Word with a straightforward novel? DIY it with a downloaded template. Want a polished result without a steep learning curve? Working on complex non-fiction with charts, sidebars, or mixed layouts? InDesign, or hand it to a formatting service instead.

Answer those three questions honestly, and you'll have your route mapped out before you've spent a single pound.

The Real Cost of Printing a Book in the UK

Cost anxiety is the single biggest reason authors stall out before finishing. Rather than a fixed price list, it helps to think of this as a set of decisions, each with a cheap end, a mid-range end and a premium end, so you can budget properly rather than getting an unpleasant surprise halfway through.

Editing is where the biggest swing sits. A basic proofread is the cheapest route, a full copy edit costs meaningfully more, and a combined developmental edit, copy edit and proofread sits at the top end for authors who want every layer covered. Cover design follows the same pattern, running from a pre-made template through to a custom design, up to a fully bespoke illustration for a distinctive, one-of-a-kind cover. Formatting can cost nothing if you do it yourself, or scale up if you outsource it, with professional formatting sitting at the higher end for complex layouts.

ISBN costs depend on a choice rather than a fixed tier. A platform-provided ISBN is free but ties that edition to a single retailer, with the platform itself listed as publisher. Buying your own is a modest one-off cost, and it's the only way to be listed as publisher yourself and use the same number across multiple platforms and printers. Buying a small block instead of a single number usually works out better value if you're planning more than one title or more than one format of the same book.

Platform fees vary depending on which service you use and which options you select, and they're worth checking directly before you commit rather than assuming they'll match what another author paid. Per-copy printing costs stay fairly consistent on print-on-demand regardless of budget level, since you're paying the same base rate whether this is your first book or your fifth, while offset printing needs a direct quote from your chosen printer since it depends heavily on paper, binding, and order size. Marketing spend is the most flexible category of all, running from pure word of mouth at the low end through to a modest paid push, up to a fully dedicated campaign for authors ready to invest seriously in reaching readers.

Put together, a typical self-publishing budget can sit anywhere from a lean, mostly DIY approach, up through a mid-range budget that mixes some professional help with some DIY work, to a fuller budget for authors who want every stage handled professionally. Editing and cover design ranges in particular vary with genre, manuscript length and how much rework is needed, so always confirm a specific quote before committing budget.

Hidden costs: VAT, shipping and legal deposit

VAT can apply to printing services and author copies depending on your circumstances and the specific service used, and it's worth checking how it affects your particular per-copy cost before you finalise a budget rather than after. Shipping costs for author proof copies and any bulk orders vary by printer and by your location, and they add up faster than most first-time authors expect. Legal deposit, covered properly in the next section, carries its own postage cost that's easy to forget when you're focused on the printing bill itself.

Budgeting tips for first-time authors

Don't skimp on editing and cover design. A professionally edited and designed book consistently sells better than a cheaply produced one, and those one-time production costs typically depend on your requirements for a custom cover and dwarf your per-copy printing cost over the life of the book. Northern Star Press's book editing service and book cover design service both exist specifically for authors who'd rather get this stage right the first time than pay twice.

A sensible spending order runs roughly: editing first, cover second, formatting third, ISBN fourth, and printing last. Getting the order right matters because a beautifully formatted book built on an unedited manuscript is still an unedited manuscript, just a nicely typeset one.

Choosing a UK Printer or Print-on-Demand Service

You have three realistic routes here: a major print-on-demand platform, a wider-distribution POD platform, or a UK-based traditional printer for offset runs.

The default starting point for most UK indie authors

A print-on-demand platform is free to use, carries no setup fees, gives you direct reach into one of the largest book marketplaces, and offers a free ISBN option if you want to start without spending anything upfront. The trade-off is that a free ISBN locks your edition to that platform, the paper and trim options are more limited than other routes, and there's no route into physical bookshops through this channel alone.

For wider distribution

Many platforms open up bookshop and library distribution that a single retailer's own POD service doesn't offer, and it lets you use your own ISBN rather than a platform-locked one, along with a broader range of trim sizes and paper stocks. It comes with setup fees, a steeper learning curve, and per-copy costs that differ from other routes, so it suits authors planning wider distribution more than a first-time single-title project.

UK-based printers for offset runs

A dedicated UK printer makes sense once you're running an offset print, need a special finish that print-on-demand can't offer, or want the option of local pickup rather than shipping. Be upfront with yourself about what's confirmed pricing and what still needs verifying here, since printer quotes and turnaround times genuinely do change, and treating every figure as gospel before you've had it confirmed directly is how budgets go wrong.

What to check before you order

Whichever route you choose, ask the same set of questions before committing.

What's the paper stock, in terms of weight and colour? Interior paper typically comes in white or cream, and cream tends to suit fiction better since it's easier on the eye across a long read, while white is more common for non-fiction with images or charts where colour accuracy matters more. Paper weight is usually quoted in gsm, with anything from around 55 to 90 gsm being standard for novel interiors, and heavier stock for anything image-heavy.

What binding type are you getting: perfect bound, case bound, or saddle-stitched? What's the realistic turnaround time, not the best-case one advertised on the homepage? What does shipping actually cost to your specific UK location, and does it change for bulk orders versus single proof copies? What's the minimum order quantity, particularly if you're considering an offset run? And critically, will they provide a physical printed proof before running your full order, since a printer that skips this step or treats it as optional is one worth being cautious of.

Pre-Print Checklist and UK Legal Steps

This is the final gate before you actually spend money on a print run, and it's worth working through properly rather than skimming, because a mistake caught here costs nothing, while the same mistake caught after 500 copies arrive costs a great deal.

Proof copy review: what to check

Order a single proof copy before any bulk run, and check it in physical form, not just on screen. Look at your inside margin to confirm text isn't disappearing into the spine, check for white slivers at any bleed edge, check spine text alignment, check colour accuracy against what you expected, confirm page order is correct throughout, and read through for any typos that somehow survived every previous read-through on a screen. Screens and paper genuinely show errors differently, which is why this step isn't optional, however confident you feel about the file.

Cover and spine checks

Spine width depends on your final page count and paper choice, so this isn't something you can lock down until formatting is finished. As a rough guide, spine width is calculated from your total page count multiplied by your paper's thickness per sheet, which is why most printers provide a spine width calculator or template once you confirm your page count and paper stock. Guessing at this figure before your interior is fully locked is one of the more common reasons a cover file gets rejected or needs reworking at the last minute. Check that spine text sits centred, that cover bleed extends properly to the trim edge, and that barcode placement works alongside your ISBN. If you're still refining the cover design itself at this stage, it's worth revisiting how to design a book cover properly rather than rushing the final file through to print.

Copyright page wording

Your copyright page needs to include a copyright notice with the year and author name, your ISBN, the publisher name, edition information, any relevant disclaimer, and a note on moral rights. This is a legal requirement, not a formality you can leave vague, and getting the wording right is part of what makes a self-published book read as genuinely professional rather than obviously improvised. If you're not confident your manuscript's grammar and punctuation are fully clean at this stage either, it's worth a final pass against common grammar mistakes before the file goes anywhere near a printer, or handing that final check to Northern Star Press's UK book proofreading service instead.

UK legal deposit requirements

If you publish in the UK, you're required to send a copy of your book within one month of publication, and copies may also be requested by the other five UK legal deposit libraries. Work out where to send it, what format they require, and budget for the postage cost involved, since it's easy to forget this step entirely once you're focused on your own copies and orders.

Your downloadable pre-print checklist

Northern Star Press has put together a one-page printable checklist covering everything above: trim size and margin settings, a bleed reminder, font and spacing settings, your ISBN decision, printer selection questions, proof copy checks, and legal deposit steps. Print it, tick each item off as you complete it, and keep it beside you through both formatting and ordering. It's a small thing that catches a surprising number of expensive mistakes.

The most expensive mistakes UK authors make

A handful of mistakes show up again and again, and every one of them is avoidable if you know to look for it before you commit to a print run.

Using US trim sizes and templates instead of UK millimetre dimensions. It's the single most common error, and it's usually invisible until the printed proof arrives looking subtly wrong.

Forgetting bleed on covers or images that touch the page edge. This shows up as thin white slivers around the trimmed edge, and it's completely avoidable with a 3.175 mm bleed setting applied before export.

Setting the inside margin too narrow. Text creeps into the gutter on a bound book far more than it appears to on screen, especially once a manuscript runs past 250 pages or so.

Taking a free platform ISBN and then wanting to sell through bookshops later. That edition stays locked to the platform permanently, so this decision is worth making deliberately rather than defaulting to free without thinking it through.

Ordering a bulk offset run before actually proving demand exists. Unsold stock sitting in boxes is the most expensive mistake on this list by a wide margin, and it's entirely preventable by starting with print-on-demand.

Skipping the proof copy stage entirely. Errors that are invisible on a screen become obvious the moment you hold a physical copy, and by then a bulk order is much harder and more expensive to fix.

Using novelty fonts or overly tight single spacing. Small typographic choices are what separate a book that reads as professionally produced from one that reads as obviously self-made, often before a reader has taken in a single word.

Forgetting UK legal deposit entirely. It's a genuine legal requirement, not an optional courtesy, and it's easy to overlook once you're focused on your own author copies.

Under-budgeting for editing and cover design relative to everything else. These are the costs that actually influence whether a book sells, far more than the per-copy printing price ever will.

Following fragmented, US-centric advice pieced together from several different sites. It's the mistake that causes most of the others on this list, since a template or setting borrowed from American guidance rarely transfers cleanly to a UK print run.

What Comes Next

Printing is one stage in a longer process, and it's worth knowing where the other pieces fit once your book is actually on the page. If you haven't locked in your cover yet, that's worth sorting before you finalise your interior file, since spine width depends on your final page count. Once your physical copies exist, getting people to actually find and buy them is its own separate project, and Northern Star Press's book marketing service and book trailer options both exist for exactly that stage, giving your finished book a proper push once it's out in the world.

If you're planning an audiobook production alongside the physical copies, that's worth planning in parallel rather than as an afterthought, since narration and physical print production run on completely different timelines. And if any part of this process feels like more than you want to manage solo, Northern Star Press's book publishing service covers the whole thing end to end, for authors who'd rather hand the production side over entirely and focus on the writing itself.

Added. Here's the new conclusion, placed right before "About This Guide":

Conclusion

Printing a book in the UK isn't complicated once you know which numbers actually apply to you. The whole process comes down to a handful of deliberate decisions made in the right order: pick your trim size before you format a single page, get your margins and bleed right so the printed copy matches what you see on screen, decide honestly whether a free ISBN or an owned one suits your plans, and choose print-on-demand over offset unless you already know you can sell in bulk.

Most of the expensive mistakes in this guide come from the same root cause: following advice built for a different market, or skipping the proof copy stage to save a few days. Neither shortcut actually saves you anything once you factor in the cost of getting it wrong. Work through the sections above in order, use the checklist to keep yourself honest at each stage, and you'll end up holding a finished book that looks exactly as professional as the process behind it.